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Trailer Wiring Harness for 2005 Toyota Highlander Limited  

Question:

I need to know which wire harness I need to purchase. My HL has the tow prep package

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Expert Reply:

Since your Highlander has the tow package, you'll want to use the Tekonsha # 118248 wiring harness. You'll want to use a circuit tester like # PTW2993 to probe the sockets on that connector in your photo to make sure it's active. If it isn't, make sure there's a 20A fuse installed in location # 11 in the fuse panel in the engine compartment (see provided diagram).

I've linked you to an installation video.

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Mike L
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Instructions

Instructions for 118248Instructions for 118413

Miscellaneous Media

A Closer Look at the Hook Probe Circuit Tester
A Closer Look at the Hook Probe Circuit Tester - Video
Installing the T-One Vehicle Wiring Harness for Factory Tow Package on your 2006 Toyota Highlander
Installing the T-One Vehicle Wiring Harness for Factory Tow Package on your 2006 Toyota Highlander - Video
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